Through continuous improvement efforts, Dura Magnetics has added the capacity to deliver micro-sized magnets.
Magnet Materials:
Oftentimes ultra-small magnets are limited to bonded magnetic products, but now Dura can deliver miniature, fully dense Neodymium Iron Boron (Neo), Samarium Cobalt (SmCo), and Strontium Ferrite (Ceramic). In addition, Dura can supply miniature cast Aluminum Nickel Cobalt (Alnico) magnets, a magnet alloy that has been traditionally been limited in non-micro sizes.
Samarium Cobalt Diametric Magnet on a Paperclip
Environmental Protection:
As well as manufacturing a variety of small magnet solutions, Dura Magnetics can provide an array of coating or plating options. Conventional magnet corrosion inhibiting solutions can be applied such as Nickel and Epoxy but also Parylene C which is oftentimes used for its inertness when the magnet will be exposed to an organic environment.
(*Please note–As with larger magnets, the penetration of a corrosion inhibiting layer is limited inside small holes and features.)
High Temp. Neo Discs ND-30UH with Pen Tip
Geometries:
All shapes and available, Discs, Blocks, Rings, Arcs, and Spheres as well as custom geometries. What is especially beneficial to the market is Dura’s deep hole capability. This is where the hole length is greater than the diameter of the part.
| Miniature / Micro Magnet Capabilities | |||
|---|---|---|---|
| Shape | OD | ID | Length |
| Ring | 0.8 to 10 | 0.3 to 3 | 0.3 to 15 |
| Disc | 0.6 to 10 | -- | 0.3 to 15 |
| Shape | Side 1 | Side 2 | Side 3 |
| Block | 0.5 to 20 | 0.5 to 20 | 0.5 to 20 |
| * All dimensions are in mm. / Not available for all magnet materials and grades. | |||
Typical Miniature Magnet Applications:
- Sensors
- Optical
- Motors
- Couplers
- Connectors
- Electroacoustic
Medical Micro-Magnet Applications:
- Implants
- Catheter Navigation
If you have an application that calls for micro-sized or miniature magnets, contact Dura Magnetics for additional assistance. Our friendly, engineering oriented staff welcomes the opportunity to answer your questions and assist with all of your magnet needs.